8 letters
- rhonchus17
- rigorous11
- rosinous10
- rouleaus11
- ructious13
- sabulous14
- sacculus17
- sapajous21
- saporous12
- savorous13
- scabious15
- scabrous15
- scalenus14
- scarious12
- scirrhus14
- sclerous13
- sedulous12
- selenous11
- senarius10
- sensuous11
- sepalous13
- seppukus20
- setulous11
- shiatsus11
- shiatzus20
- sombrous15
- sonorous10
- spacious15
- specious15
- spermous15
- sphygmus21
- splenius14
- spurious13
- squamous22
- stannous11
- stimulus14
- stratous9
- strumous13
- studious11
- suberous13
- subgenus16
- submenus17
- succubus20
- susurrus11
- syllabus16
- tableaus13
- tamandus14
- tamaraus12
- tantalus11
- tenesmus13
- terminus13
- thalamus15
- thallous13
- thrombus17
- timaraus12
- timorous12
- tinamous13
- tinnitus11
- titanous10
- tonneaus11
- tortious9
- tortuous10
- trappous15
- tuberous13
- tubulous15
- tumorous13
- tumulous15
- turacous13
- ulcerous14
- unctuous15
- unfamous17
- usurious11
- uxorious17
- valorous14
- vanadous15
- vaporous16
- venomous17
- venulous16
- vigorous15
- viperous16
- virtuous14
- vitellus15
- vitreous13
- volvulus20
- vomitous16
- wamefous18
- wondrous14
- xanthous19